More planter membrane termination details

On the left a cantilevered piece of concrete with a drip edge at 15 degrees.

On the right a metal flashing cast inot the concrete at time of the pour. You should imagine that this has a two piece to it one to get cast and the other to be installed after the membrane is installed.

Membrane Terminations at Concrete Curb Walls

I have drawn the following membrane counter flashing details for membrane terminations at concrete curb walls. Each of these details are acceptable solutions. The sprung locked flashing fit into the concrete block out is the preferred option because it does not rely on sealant. Another option is to cast the flashing into the concrete creating no sealant required and eliminating the need to maintain the sealant joint.

The other flashing with the gumlip seal offers a cheap effective solution with a sealant joint that is easily inspected and therefore maintained.

Tell me what you think?





















The drawings on the Left is a depiction of a notched concrete wall with spring locked counter-flashing and the right is a depiction of a sheet metal flashing termination with gumlip seal.